采用亚硫酸钠还原法从沉金后液中回收稀贵金属张福元;郑雅杰;孙召明;马亚赟;董俊斐大蒜破瓣机【摘 要】By using sodium sulfite as reductant and Cl- and composited halogen ions as catalysts, selenium and tellurium were recovered and gold, platinum and pa
采用亚硫酸钠还原法从沉金后液中回收稀贵金属张福元;郑雅杰;孙召明;马亚赟;董俊斐【摘 要】By using sodium sulfite as reductant and Cl- and composited halogen ions as catalysts, selenium and tellurium were recovered and gold, platinum and palladi
沉金板阻焊半塞孔冒油问题改良常盼;邢玉伟【摘 要】为了降低沉金板阻焊半塞孔冒油比例,设计试验验证总结影响沉金板阻焊半塞孔冒油的影响因素:阻焊塞孔油墨更换、重氮片更换、显影参数调整及后烘参数优化等。通过试验逐一验证后输出控制措施从而达到改善沉金板阻焊半塞孔冒油问题。%In order to reduce the heavy gold plate resistance welding of half